Harnois innovates again with the launch of the 16,20 meters wide Luminosa! A bright and optimized multispan greenhouse for vegetable crops grown under tropical conditions. Everything in the Luminosa has been designed to create optimal production conditions. Nothing was left to chance, whether it be luminosity, air volume, usable space or ...

Originally designed for tropical climates, the Luminosa is our most popular greenhouse structure, with over 500 acres sold around the world. This northern version offers the same benefits that have made the original Luminosa the preferred greenhouse of top growers such as amazing light levels, superior stability in climate control and improved ...

With its high perlite content, PRO-MIX HP provides a great growing environment to growers looking for a significant drainage capacity, increased air porosity and lower water retention. The added benefit of fibrous peat moss and coarse perlite makes this formulation ideal for growers who require a superior-quality product ...

With its high perlite content, PRO-MIX HP provides a great growing environment to growers looking for a significant drainage capacity, increased air porosity and lower water retention. The added benefit of fibrous peat moss and coarse perlite makes this formulation ideal for growers who require a superior-quality product ...

The Ovaltech is our most popular product. It is more adaptable and versatile than gutter connected greenhouse structures. It can change its purpose and function as needed. Ovaltech quonset greenhouse is multi-functional and requires less investment compared to a gutter connected greenhouse of the same size.

Growers often need additional space for crops or a protected area for plants outside the greenhouse production range. The Ovaltech individual tunnel is a quick and economical way to increase the covered area of your operation.

Hydroponic means growing without soil. From there, several different systems have been put together since the early sixties, starting mostly in England and Israel. Early systems were very basic, replacing soil by growing media like sand, peat moss or rockwool.

Climate control is an essential part of greenhouse management. A greenhouse is a means to create a perfect microclimate adapted to the needs of specific crops, regardless of the weather outside. Centralized management of equipment facilitates precise control of heating, lighting, irrigation and other components of greenhouse management.

The SM greenhouse product line is speciﬁcally designed for greenhouse crops, such as potted plants, bedding plants and hanging baskets. It offers consistency and easy use, along with a well-balanced air-water ratio.

It is the addition of covering that turns the skeleton of a greenhouse into an environment compatible with the culture of plants. Essential to creating the desired greenhouse effect, the right covering has a large influence on the quality and characteristics of the microclimate the greenhouse will provide. There are three main types of greenhouse ...

The rack and pinion screen systems of Harnois Greenhouses modulate efficiently and accurately greenhouse climate and create ideal conditions for crops. Whether it is thermal, shading or blackout screens, we offer a wide range of possibilities for all types of culture.

In temperate climates where sunlight is not sufficient year round for the production of crops that require a long photoperiod, the use of extra lighting is essential. Harnois Greenhouses offers state-of-the-art photosynthesis lighting systems which can influence the yield and quality of plants grown in greenhouses. For each project, lighting needs ...

PRO-MIX BK25 is a medium-weight growing medium designed for the cultivation of greenhouse horticultural crops in 4” pots or larger. The combination of processed southern pine bark, sphagnum peat moss and perlite makes for a general purpose product that provides good drainage and low water retention capacity.

The sprayers are perfect for spraying using plant protection chemicals and liquid fertilizers in orchards, nurseries, gardens, plantations, greenhouses. MX20 sprayers are professional, practical, reliable and easy to use. Every detail of our sprayer is designed to serve you.

In contrast to most greenhouse operations, the Floating Rafts system allow the produce to move smoothly from seeding to harvest, while workers stay at their work station, well equipped to perform their work under the best conditions. No more bended back working in difficult conditions and lost time looking for the ripe produce; the crop is coming ...

Sprayers from HOBBY line are air-compressed 5, 7, 9, 12 liters capacity devices. They are perfect for spraying with plant protection chemicals and liquid fertilizers in orchards, nurseries, plantations, gardens, greenhouses. Hobby models represent exquisite spraying machines that are practical, reliable and as such are easy to use. Every detail of ...

PRO-MIX BK55 is a medium-weight growing medium designed for the cultivation of long-term greenhouse crops and perennials grown outdoors. The combination of processed southern pine bark, sphagnum peat moss and perlite makes for a good air/water balance. The high percent of bark adds weight, which is perfect for growers looking for container ...

Floating Rafts Technology has been developed at the University of Arizona (U.S.A.) and at Italian Research Centers in the late seventies and has been adapted to commercial production by HydroNov Inc. from Mirabel, Canada. Since 1988, Floating Rafts Technology has been installed over thirty hectare (30ha) (3,000,000 square feet) of greenhouse in ...